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Plants 2018, 7(4), 106; https://doi.org/10.3390/plants7040106

Quinoa Abiotic Stress Responses: A Review

1
Sustainable Seed Systems Lab, Department of Crop and Soil Sciences, College of Agricultural, Human, and Natural Resource Sciences, Washington State University, Pullman, WA 99164-6420, USA
2
Facultad de Recursos Naturales, Escuela de Agronomía, Escuela Superior Politécnica de Chimborazo, Riobamba 060106, Ecuador
3
Fundación Miguel Lillo, Instituto de Ecología, Miguel Lillo, San Miguel de Tucumán Post 4000, Argentina
4
Department of Agriculture, Veterinary and Rangeland Sciences, University of Nevada-Reno, Reno, NV 89557, USA
5
Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Vicuña Mackenna, Macul, Santiago 4860, Chile
*
Author to whom correspondence should be addressed.
Received: 4 November 2018 / Revised: 26 November 2018 / Accepted: 26 November 2018 / Published: 29 November 2018
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Abstract

Quinoa (Chenopodium quinoa Willd.) is a genetically diverse Andean crop that has earned special attention worldwide due to its nutritional and health benefits and its ability to adapt to contrasting environments, including nutrient-poor and saline soils and drought stressed marginal agroecosystems. Drought and salinity are the abiotic stresses most studied in quinoa; however, studies of other important stress factors, such as heat, cold, heavy metals, and UV-B light irradiance, are severely limited. In the last few decades, the incidence of abiotic stress has been accentuated by the increase in unpredictable weather patterns. Furthermore, stresses habitually occur as combinations of two or more. The goals of this review are to: (1) provide an in-depth description of the existing knowledge of quinoa’s tolerance to different abiotic stressors; (2) summarize quinoa’s physiological responses to these stressors; and (3) describe novel advances in molecular tools that can aid our understanding of the mechanisms underlying quinoa’s abiotic stress tolerance. View Full-Text
Keywords: quinoa; abiotic stress; heat; drought; salinity; mechanism quinoa; abiotic stress; heat; drought; salinity; mechanism
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Hinojosa, L.; González, J.A.; Barrios-Masias, F.H.; Fuentes, F.; Murphy, K.M. Quinoa Abiotic Stress Responses: A Review. Plants 2018, 7, 106.

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